/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_floodmax.3.4.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-15 02:20:35,298 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 02:20:35,301 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 02:20:35,324 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 02:20:35,325 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 02:20:35,326 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 02:20:35,327 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 02:20:35,329 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 02:20:35,331 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 02:20:35,331 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 02:20:35,332 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 02:20:35,333 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 02:20:35,334 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 02:20:35,335 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 02:20:35,336 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 02:20:35,337 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 02:20:35,338 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 02:20:35,339 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 02:20:35,340 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 02:20:35,342 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 02:20:35,343 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 02:20:35,344 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 02:20:35,346 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 02:20:35,346 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 02:20:35,351 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 02:20:35,351 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 02:20:35,352 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 02:20:35,353 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 02:20:35,353 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 02:20:35,354 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 02:20:35,354 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 02:20:35,355 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 02:20:35,356 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 02:20:35,357 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 02:20:35,357 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 02:20:35,358 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 02:20:35,358 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 02:20:35,359 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 02:20:35,359 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 02:20:35,360 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 02:20:35,361 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 02:20:35,361 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-15 02:20:35,384 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 02:20:35,384 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 02:20:35,385 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 02:20:35,386 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 02:20:35,386 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 02:20:35,386 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 02:20:35,386 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 02:20:35,386 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 02:20:35,387 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 02:20:35,387 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 02:20:35,387 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 02:20:35,387 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 02:20:35,387 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 02:20:35,388 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 02:20:35,388 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 02:20:35,388 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 02:20:35,388 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 02:20:35,388 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 02:20:35,389 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 02:20:35,389 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 02:20:35,389 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 02:20:35,389 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 02:20:35,389 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 02:20:35,390 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 02:20:35,390 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 02:20:35,390 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 02:20:35,390 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 02:20:35,390 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 02:20:35,390 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 02:20:35,391 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-15 02:20:35,744 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 02:20:35,757 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 02:20:35,761 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 02:20:35,762 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 02:20:35,763 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 02:20:35,764 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_floodmax.3.4.ufo.UNBOUNDED.pals.c [2020-10-15 02:20:35,836 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c33b0926e/1b4afdb95e374fa29ba9b3419b7bdfeb/FLAG19252dbdf [2020-10-15 02:20:36,368 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 02:20:36,369 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_floodmax.3.4.ufo.UNBOUNDED.pals.c [2020-10-15 02:20:36,386 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c33b0926e/1b4afdb95e374fa29ba9b3419b7bdfeb/FLAG19252dbdf [2020-10-15 02:20:36,685 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c33b0926e/1b4afdb95e374fa29ba9b3419b7bdfeb [2020-10-15 02:20:36,694 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 02:20:36,696 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-15 02:20:36,698 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 02:20:36,698 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 02:20:36,702 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 02:20:36,703 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:20:36" (1/1) ... [2020-10-15 02:20:36,707 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f9949ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:20:36, skipping insertion in model container [2020-10-15 02:20:36,707 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:20:36" (1/1) ... [2020-10-15 02:20:36,716 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 02:20:36,773 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 02:20:37,023 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 02:20:37,125 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 02:20:37,201 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 02:20:37,220 INFO L208 MainTranslator]: Completed translation [2020-10-15 02:20:37,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:20:37 WrapperNode [2020-10-15 02:20:37,221 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 02:20:37,222 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 02:20:37,222 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 02:20:37,222 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 02:20:37,237 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:20:37" (1/1) ... [2020-10-15 02:20:37,238 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:20:37" (1/1) ... [2020-10-15 02:20:37,249 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:20:37" (1/1) ... [2020-10-15 02:20:37,249 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:20:37" (1/1) ... [2020-10-15 02:20:37,265 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:20:37" (1/1) ... [2020-10-15 02:20:37,280 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:20:37" (1/1) ... [2020-10-15 02:20:37,284 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:20:37" (1/1) ... [2020-10-15 02:20:37,291 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 02:20:37,292 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 02:20:37,292 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 02:20:37,292 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 02:20:37,293 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:20:37" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 02:20:37,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-15 02:20:37,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 02:20:37,357 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-15 02:20:37,357 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-15 02:20:37,357 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-15 02:20:37,358 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-15 02:20:37,358 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-15 02:20:37,358 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-15 02:20:37,358 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-15 02:20:37,358 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-15 02:20:37,358 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-15 02:20:37,359 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-15 02:20:37,359 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-15 02:20:37,359 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-15 02:20:37,359 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-15 02:20:37,359 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-15 02:20:37,359 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-15 02:20:37,360 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-15 02:20:37,360 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-15 02:20:37,360 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-15 02:20:37,360 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-15 02:20:37,360 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-15 02:20:37,360 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-15 02:20:37,361 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-15 02:20:37,361 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-15 02:20:37,361 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-15 02:20:37,361 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 02:20:38,222 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 02:20:38,223 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-15 02:20:38,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:20:38 BoogieIcfgContainer [2020-10-15 02:20:38,229 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 02:20:38,231 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 02:20:38,231 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 02:20:38,234 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 02:20:38,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 02:20:36" (1/3) ... [2020-10-15 02:20:38,235 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c3cefeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:20:38, skipping insertion in model container [2020-10-15 02:20:38,236 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:20:37" (2/3) ... [2020-10-15 02:20:38,236 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c3cefeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:20:38, skipping insertion in model container [2020-10-15 02:20:38,236 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:20:38" (3/3) ... [2020-10-15 02:20:38,238 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_floodmax.3.4.ufo.UNBOUNDED.pals.c [2020-10-15 02:20:38,249 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-15 02:20:38,257 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 02:20:38,272 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-15 02:20:38,299 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-15 02:20:38,299 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-15 02:20:38,299 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-15 02:20:38,300 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 02:20:38,300 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 02:20:38,300 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-15 02:20:38,300 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 02:20:38,301 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 02:20:38,324 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states. [2020-10-15 02:20:38,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-10-15 02:20:38,336 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:20:38,337 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:20:38,337 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:20:38,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:20:38,344 INFO L82 PathProgramCache]: Analyzing trace with hash -697851026, now seen corresponding path program 1 times [2020-10-15 02:20:38,352 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:20:38,353 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [267131729] [2020-10-15 02:20:38,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:20:38,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:38,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:38,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:38,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-15 02:20:38,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:38,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 337 [2020-10-15 02:20:38,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:38,972 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:38,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:20:38,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-10-15 02:20:38,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:20:38,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-15 02:20:39,230 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:20:39,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:20:39,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:39,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:39,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:39,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:20:39,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:39,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-15 02:20:39,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:39,261 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:39,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:20:39,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:20:39,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:20:39,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:20:39,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:20:39,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:39,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:39,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:39,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-15 02:20:39,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:39,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-15 02:20:39,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:39,306 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:39,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:20:39,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:20:39,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:20:39,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:20:39,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-15 02:20:39,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:39,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:39,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:39,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:20:39,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:39,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:20:39,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:39,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:39,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:20:39,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-15 02:20:39,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:20:39,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:20:39,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-15 02:20:39,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:39,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:39,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:39,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:20:39,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:39,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:20:39,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:39,377 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:39,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:20:39,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:20:39,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:20:39,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:20:39,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-15 02:20:39,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:39,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:39,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:39,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:20:39,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:39,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:20:39,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:39,428 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:39,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:20:39,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:20:39,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:20:39,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:20:39,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-15 02:20:39,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:39,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:39,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:39,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:20:39,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:39,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:20:39,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:39,479 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:39,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:20:39,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:20:39,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:20:39,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:20:39,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-15 02:20:39,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:39,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:39,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:39,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:20:39,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:39,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:20:39,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:39,494 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:39,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:20:39,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:20:39,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:20:39,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:20:39,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:20:39,541 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [267131729] [2020-10-15 02:20:39,543 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:20:39,543 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-15 02:20:39,544 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391301929] [2020-10-15 02:20:39,551 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 02:20:39,552 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:20:39,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 02:20:39,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-15 02:20:39,569 INFO L87 Difference]: Start difference. First operand 164 states. Second operand 6 states. [2020-10-15 02:20:40,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:20:40,610 INFO L93 Difference]: Finished difference Result 272 states and 432 transitions. [2020-10-15 02:20:40,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 02:20:40,612 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 62 [2020-10-15 02:20:40,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:20:40,627 INFO L225 Difference]: With dead ends: 272 [2020-10-15 02:20:40,628 INFO L226 Difference]: Without dead ends: 174 [2020-10-15 02:20:40,632 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:20:40,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2020-10-15 02:20:40,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 159. [2020-10-15 02:20:40,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2020-10-15 02:20:40,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 255 transitions. [2020-10-15 02:20:40,697 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 255 transitions. Word has length 62 [2020-10-15 02:20:40,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:20:40,698 INFO L479 AbstractCegarLoop]: Abstraction has 159 states and 255 transitions. [2020-10-15 02:20:40,698 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 02:20:40,698 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 255 transitions. [2020-10-15 02:20:40,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-10-15 02:20:40,701 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:20:40,701 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:20:40,702 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 02:20:40,702 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:20:40,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:20:40,702 INFO L82 PathProgramCache]: Analyzing trace with hash -1541856528, now seen corresponding path program 1 times [2020-10-15 02:20:40,702 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:20:40,703 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [157258510] [2020-10-15 02:20:40,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:20:40,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:40,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:41,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:41,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-15 02:20:41,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:41,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 649 [2020-10-15 02:20:41,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:41,392 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:41,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 02:20:41,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-15 02:20:41,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:20:41,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:20:41,578 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:20:41,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:20:41,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:41,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:41,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:41,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:20:41,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:41,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 02:20:41,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:41,602 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:41,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:20:41,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:20:41,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:20:41,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:20:41,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:20:41,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:41,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:41,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:41,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-15 02:20:41,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:41,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-15 02:20:41,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:41,671 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:41,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:20:41,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:20:41,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-15 02:20:41,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:20:41,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-15 02:20:41,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:41,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:41,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:41,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:20:41,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:41,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:20:41,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:41,717 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:41,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:20:41,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-15 02:20:41,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:20:41,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:20:41,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-15 02:20:41,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:41,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:41,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:41,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:20:41,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:41,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:20:41,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:41,850 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:41,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:20:41,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:20:41,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:20:41,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:20:41,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-15 02:20:41,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:41,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:41,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:41,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:20:41,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:41,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:20:41,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:41,911 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:41,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:20:41,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:20:41,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:20:41,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-15 02:20:41,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-15 02:20:41,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:41,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:41,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:41,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:20:41,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:41,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:20:41,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:41,962 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:41,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:20:41,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:20:41,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:20:41,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:20:41,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-15 02:20:41,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:41,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:41,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:41,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:20:41,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:41,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:20:41,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:41,974 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:41,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:20:41,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:20:41,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:20:41,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:20:41,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:20:41,988 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [157258510] [2020-10-15 02:20:41,988 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:20:41,988 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-15 02:20:41,988 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293483877] [2020-10-15 02:20:41,991 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-15 02:20:41,991 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:20:41,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-15 02:20:41,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-15 02:20:41,993 INFO L87 Difference]: Start difference. First operand 159 states and 255 transitions. Second operand 12 states. [2020-10-15 02:20:42,461 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:20:42,669 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-15 02:20:42,932 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-15 02:20:43,120 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-15 02:20:44,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:20:44,515 INFO L93 Difference]: Finished difference Result 270 states and 424 transitions. [2020-10-15 02:20:44,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-15 02:20:44,516 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 62 [2020-10-15 02:20:44,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:20:44,520 INFO L225 Difference]: With dead ends: 270 [2020-10-15 02:20:44,520 INFO L226 Difference]: Without dead ends: 174 [2020-10-15 02:20:44,522 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2020-10-15 02:20:44,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2020-10-15 02:20:44,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 159. [2020-10-15 02:20:44,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2020-10-15 02:20:44,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 228 transitions. [2020-10-15 02:20:44,556 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 228 transitions. Word has length 62 [2020-10-15 02:20:44,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:20:44,557 INFO L479 AbstractCegarLoop]: Abstraction has 159 states and 228 transitions. [2020-10-15 02:20:44,557 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-15 02:20:44,557 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 228 transitions. [2020-10-15 02:20:44,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-15 02:20:44,568 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:20:44,569 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:20:44,569 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 02:20:44,569 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:20:44,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:20:44,570 INFO L82 PathProgramCache]: Analyzing trace with hash 1465750151, now seen corresponding path program 1 times [2020-10-15 02:20:44,570 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:20:44,570 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2087052983] [2020-10-15 02:20:44,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:20:44,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:44,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:44,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:44,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:45,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:49,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:49,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-15 02:20:49,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 02:20:49,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-10-15 02:20:49,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:49,646 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:49,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:20:49,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-10-15 02:20:49,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-15 02:20:49,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:20:49,833 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:20:49,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:20:49,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:49,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:49,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:49,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:20:49,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:49,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:20:49,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:49,847 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:49,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:20:49,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:20:49,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:20:49,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:20:49,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:20:49,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:49,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:49,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:49,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-15 02:20:49,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:49,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-15 02:20:49,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:49,899 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:49,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:20:49,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:20:49,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-15 02:20:49,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:20:49,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-15 02:20:49,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:49,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:49,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:49,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:20:49,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:49,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:20:49,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:49,925 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:49,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:20:49,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:20:49,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:20:49,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:20:49,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-15 02:20:49,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:49,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:49,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:49,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:20:49,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:49,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:20:49,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:49,960 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:49,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:20:49,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:20:49,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:20:49,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:20:49,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-15 02:20:49,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:49,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:50,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:50,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:20:50,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:50,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-15 02:20:50,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:50,006 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:50,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:20:50,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:20:50,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:20:50,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:20:50,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-15 02:20:50,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:50,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:50,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:50,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:20:50,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:50,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:20:50,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:50,070 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:50,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:20:50,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:20:50,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:20:50,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:20:50,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-15 02:20:50,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:50,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:50,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:50,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:20:50,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:50,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:20:50,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:50,079 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:50,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:20:50,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:20:50,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:20:50,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:20:50,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:20:50,103 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2087052983] [2020-10-15 02:20:50,103 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:20:50,104 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 02:20:50,104 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122698392] [2020-10-15 02:20:50,105 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 02:20:50,105 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:20:50,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 02:20:50,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:20:50,106 INFO L87 Difference]: Start difference. First operand 159 states and 228 transitions. Second operand 9 states. [2020-10-15 02:20:50,299 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:20:52,239 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2020-10-15 02:20:52,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:20:52,582 INFO L93 Difference]: Finished difference Result 375 states and 560 transitions. [2020-10-15 02:20:52,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-15 02:20:52,583 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 88 [2020-10-15 02:20:52,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:20:52,592 INFO L225 Difference]: With dead ends: 375 [2020-10-15 02:20:52,592 INFO L226 Difference]: Without dead ends: 285 [2020-10-15 02:20:52,594 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=110, Invalid=270, Unknown=0, NotChecked=0, Total=380 [2020-10-15 02:20:52,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2020-10-15 02:20:52,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 249. [2020-10-15 02:20:52,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2020-10-15 02:20:52,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 369 transitions. [2020-10-15 02:20:52,654 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 369 transitions. Word has length 88 [2020-10-15 02:20:52,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:20:52,655 INFO L479 AbstractCegarLoop]: Abstraction has 249 states and 369 transitions. [2020-10-15 02:20:52,655 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 02:20:52,658 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 369 transitions. [2020-10-15 02:20:52,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-10-15 02:20:52,661 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:20:52,661 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:20:52,662 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 02:20:52,662 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:20:52,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:20:52,662 INFO L82 PathProgramCache]: Analyzing trace with hash 816411638, now seen corresponding path program 1 times [2020-10-15 02:20:52,663 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:20:52,663 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [875680006] [2020-10-15 02:20:52,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:20:52,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:52,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:52,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:52,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:53,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:53,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:57,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:57,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-15 02:20:57,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 02:20:57,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-15 02:20:57,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:57,718 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:57,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:20:57,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:20:57,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-15 02:20:57,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:20:57,940 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:20:57,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:20:57,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:57,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:57,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:57,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:20:57,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:57,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 02:20:57,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:57,960 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:57,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:20:57,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:20:57,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:20:57,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:20:57,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:20:57,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:58,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:58,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:58,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-15 02:20:58,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:58,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-15 02:20:58,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:58,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:58,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:20:58,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:20:58,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 02:20:58,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:20:58,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-15 02:20:58,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:58,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:58,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:58,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:20:58,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:58,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:20:58,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:58,184 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:58,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:20:58,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:20:58,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:20:58,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:20:58,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-15 02:20:58,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:58,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:58,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:58,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:20:58,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:58,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:20:58,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:58,226 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:58,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:20:58,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:20:58,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:20:58,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:20:58,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-15 02:20:58,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:58,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:58,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:58,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:20:58,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:58,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:20:58,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:58,268 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:58,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:20:58,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 02:20:58,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:20:58,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:20:58,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-15 02:20:58,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:58,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:58,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:58,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:20:58,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:58,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:20:58,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:58,316 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:58,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:20:58,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:20:58,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:20:58,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:20:58,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-15 02:20:58,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:58,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:58,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:58,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:20:58,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:58,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:20:58,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:58,323 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:58,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:20:58,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:20:58,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:20:58,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:20:58,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:20:58,350 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [875680006] [2020-10-15 02:20:58,351 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:20:58,351 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 02:20:58,351 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159365176] [2020-10-15 02:20:58,353 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 02:20:58,353 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:20:58,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 02:20:58,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:20:58,354 INFO L87 Difference]: Start difference. First operand 249 states and 369 transitions. Second operand 9 states. [2020-10-15 02:20:58,549 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:20:58,751 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-15 02:20:59,017 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-15 02:20:59,384 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 153 [2020-10-15 02:21:00,253 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-15 02:21:02,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:21:02,967 INFO L93 Difference]: Finished difference Result 952 states and 1419 transitions. [2020-10-15 02:21:02,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-15 02:21:02,968 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 90 [2020-10-15 02:21:02,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:21:02,973 INFO L225 Difference]: With dead ends: 952 [2020-10-15 02:21:02,974 INFO L226 Difference]: Without dead ends: 721 [2020-10-15 02:21:02,977 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=137, Invalid=369, Unknown=0, NotChecked=0, Total=506 [2020-10-15 02:21:02,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 721 states. [2020-10-15 02:21:03,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 721 to 649. [2020-10-15 02:21:03,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 649 states. [2020-10-15 02:21:03,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 649 states and 958 transitions. [2020-10-15 02:21:03,054 INFO L78 Accepts]: Start accepts. Automaton has 649 states and 958 transitions. Word has length 90 [2020-10-15 02:21:03,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:21:03,054 INFO L479 AbstractCegarLoop]: Abstraction has 649 states and 958 transitions. [2020-10-15 02:21:03,054 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 02:21:03,054 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 958 transitions. [2020-10-15 02:21:03,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-10-15 02:21:03,057 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:21:03,057 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:21:03,057 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 02:21:03,058 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:21:03,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:21:03,058 INFO L82 PathProgramCache]: Analyzing trace with hash -1987426086, now seen corresponding path program 1 times [2020-10-15 02:21:03,058 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:21:03,059 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [827913725] [2020-10-15 02:21:03,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:21:03,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:03,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:03,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:03,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:03,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:03,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:05,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:08,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:08,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-15 02:21:08,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 02:21:08,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-15 02:21:08,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:08,092 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:08,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:21:08,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:21:08,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-15 02:21:08,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:08,285 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:21:08,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:21:08,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:08,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:08,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:08,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:21:08,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:08,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:21:08,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:08,296 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:08,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:21:08,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:08,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:21:08,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:08,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:21:08,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:08,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:08,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:08,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:08,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:08,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-15 02:21:08,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 02:21:08,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-10-15 02:21:08,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:08,403 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:08,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:21:08,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-15 02:21:08,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-15 02:21:08,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:08,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-15 02:21:08,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:08,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:08,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:08,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:21:08,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:08,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:21:08,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:08,459 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:08,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:21:08,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:08,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:21:08,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:21:08,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-15 02:21:08,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:08,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:08,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:08,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:08,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:08,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:21:08,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:08,498 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:08,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:21:08,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:08,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:21:08,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:08,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-15 02:21:08,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:08,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:08,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:08,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:21:08,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:08,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:21:08,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:08,543 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:08,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:21:08,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-15 02:21:08,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:21:08,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:08,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-15 02:21:08,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:08,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:08,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:08,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:08,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:08,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:21:08,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:08,596 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:08,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:21:08,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:21:08,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:21:08,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:08,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-15 02:21:08,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:08,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:08,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:08,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:08,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:08,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:21:08,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:08,604 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:08,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:21:08,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:21:08,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:21:08,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:08,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:21:08,623 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [827913725] [2020-10-15 02:21:08,624 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:21:08,624 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 02:21:08,624 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954320654] [2020-10-15 02:21:08,625 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 02:21:08,625 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:21:08,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 02:21:08,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-15 02:21:08,626 INFO L87 Difference]: Start difference. First operand 649 states and 958 transitions. Second operand 10 states. [2020-10-15 02:21:08,813 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:21:09,139 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-15 02:21:09,328 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-15 02:21:09,543 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-15 02:21:09,786 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-15 02:21:09,971 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-15 02:21:13,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:21:13,624 INFO L93 Difference]: Finished difference Result 2556 states and 3745 transitions. [2020-10-15 02:21:13,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-15 02:21:13,625 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 91 [2020-10-15 02:21:13,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:21:13,641 INFO L225 Difference]: With dead ends: 2556 [2020-10-15 02:21:13,641 INFO L226 Difference]: Without dead ends: 1836 [2020-10-15 02:21:13,645 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=155, Invalid=445, Unknown=0, NotChecked=0, Total=600 [2020-10-15 02:21:13,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1836 states. [2020-10-15 02:21:13,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1836 to 1674. [2020-10-15 02:21:13,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1674 states. [2020-10-15 02:21:13,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1674 states to 1674 states and 2438 transitions. [2020-10-15 02:21:13,788 INFO L78 Accepts]: Start accepts. Automaton has 1674 states and 2438 transitions. Word has length 91 [2020-10-15 02:21:13,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:21:13,789 INFO L479 AbstractCegarLoop]: Abstraction has 1674 states and 2438 transitions. [2020-10-15 02:21:13,789 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 02:21:13,789 INFO L276 IsEmpty]: Start isEmpty. Operand 1674 states and 2438 transitions. [2020-10-15 02:21:13,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-15 02:21:13,794 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:21:13,794 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:21:13,794 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 02:21:13,794 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:21:13,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:21:13,795 INFO L82 PathProgramCache]: Analyzing trace with hash -1796207685, now seen corresponding path program 1 times [2020-10-15 02:21:13,795 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:21:13,795 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [321153319] [2020-10-15 02:21:13,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:21:13,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:13,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:13,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:13,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:14,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:18,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:18,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-15 02:21:18,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 02:21:18,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-15 02:21:18,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:18,830 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:18,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:21:18,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:21:18,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-15 02:21:18,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:19,050 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:21:19,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:21:19,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:19,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:19,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:19,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:21:19,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:19,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:21:19,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:19,066 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:19,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:21:19,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:19,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:21:19,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:21:19,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:21:19,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:19,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:19,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:19,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-15 02:21:19,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:19,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-15 02:21:19,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:19,137 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:19,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:21:19,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:19,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:21:19,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:21:19,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-15 02:21:19,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:19,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:19,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:19,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:21:19,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:19,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:21:19,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:19,232 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:19,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:21:19,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:19,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:21:19,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:21:19,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-15 02:21:19,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:19,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:19,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:19,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:19,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:19,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:21:19,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:19,276 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:19,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:21:19,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:19,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:21:19,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:21:19,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-15 02:21:19,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:19,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:19,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:19,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:21:19,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:19,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 02:21:19,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:19,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:19,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:21:19,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-15 02:21:19,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:21:19,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:21:19,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-15 02:21:19,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:19,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:19,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:19,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:19,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:19,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:21:19,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:19,373 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:19,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:21:19,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:21:19,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:21:19,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:21:19,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-15 02:21:19,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:19,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:19,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:19,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:19,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:19,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:21:19,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:19,381 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:19,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:21:19,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:21:19,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:21:19,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:19,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:21:19,406 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [321153319] [2020-10-15 02:21:19,407 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:21:19,408 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 02:21:19,408 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489974482] [2020-10-15 02:21:19,409 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 02:21:19,410 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:21:19,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 02:21:19,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:21:19,411 INFO L87 Difference]: Start difference. First operand 1674 states and 2438 transitions. Second operand 9 states. [2020-10-15 02:21:19,593 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:21:19,783 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-15 02:21:20,024 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-15 02:21:20,534 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 153 [2020-10-15 02:21:21,083 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-15 02:21:23,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:21:23,689 INFO L93 Difference]: Finished difference Result 2195 states and 3180 transitions. [2020-10-15 02:21:23,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-15 02:21:23,690 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 92 [2020-10-15 02:21:23,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:21:23,701 INFO L225 Difference]: With dead ends: 2195 [2020-10-15 02:21:23,701 INFO L226 Difference]: Without dead ends: 1613 [2020-10-15 02:21:23,704 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=137, Invalid=369, Unknown=0, NotChecked=0, Total=506 [2020-10-15 02:21:23,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1613 states. [2020-10-15 02:21:23,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1613 to 1439. [2020-10-15 02:21:23,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1439 states. [2020-10-15 02:21:23,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1439 states to 1439 states and 2081 transitions. [2020-10-15 02:21:23,820 INFO L78 Accepts]: Start accepts. Automaton has 1439 states and 2081 transitions. Word has length 92 [2020-10-15 02:21:23,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:21:23,820 INFO L479 AbstractCegarLoop]: Abstraction has 1439 states and 2081 transitions. [2020-10-15 02:21:23,820 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 02:21:23,820 INFO L276 IsEmpty]: Start isEmpty. Operand 1439 states and 2081 transitions. [2020-10-15 02:21:23,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-15 02:21:23,824 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:21:23,825 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:21:23,825 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 02:21:23,825 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:21:23,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:21:23,826 INFO L82 PathProgramCache]: Analyzing trace with hash 1352210343, now seen corresponding path program 1 times [2020-10-15 02:21:23,826 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:21:23,826 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [411908071] [2020-10-15 02:21:23,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:21:23,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:23,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:23,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:23,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:23,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:24,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:24,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:28,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:28,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-15 02:21:28,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 02:21:28,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-15 02:21:28,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:28,860 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:28,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:21:28,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:21:28,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-15 02:21:28,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:29,050 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:21:29,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:21:29,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:29,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:29,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:29,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:21:29,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:29,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:21:29,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:29,070 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:29,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:21:29,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:29,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:21:29,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:21:29,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:21:29,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:29,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:29,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:29,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-15 02:21:29,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:29,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-15 02:21:29,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:29,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:29,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:21:29,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:29,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-15 02:21:29,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:29,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-15 02:21:29,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:29,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:29,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:29,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:21:29,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:29,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:21:29,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:29,164 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:29,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:21:29,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:29,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:21:29,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:29,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-15 02:21:29,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:29,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:29,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:29,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:29,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:29,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:21:29,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:29,201 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:29,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:21:29,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:29,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:21:29,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:29,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-15 02:21:29,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:29,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:29,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:29,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:21:29,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:29,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 02:21:29,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:29,247 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:29,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:21:29,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 02:21:29,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:21:29,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:29,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-15 02:21:29,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:29,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:29,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:29,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:29,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:29,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:21:29,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:29,294 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:29,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:21:29,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:21:29,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:21:29,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:29,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-15 02:21:29,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:29,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:29,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:29,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:29,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:29,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:21:29,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:29,298 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:29,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:21:29,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:21:29,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:21:29,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:29,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:21:29,314 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [411908071] [2020-10-15 02:21:29,314 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:21:29,314 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 02:21:29,315 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297123507] [2020-10-15 02:21:29,315 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 02:21:29,315 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:21:29,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 02:21:29,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:21:29,316 INFO L87 Difference]: Start difference. First operand 1439 states and 2081 transitions. Second operand 9 states. [2020-10-15 02:21:29,503 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:21:29,659 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-15 02:21:29,825 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-15 02:21:29,988 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-15 02:21:30,665 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-15 02:21:32,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:21:32,801 INFO L93 Difference]: Finished difference Result 4296 states and 6282 transitions. [2020-10-15 02:21:32,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-15 02:21:32,802 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 92 [2020-10-15 02:21:32,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:21:32,816 INFO L225 Difference]: With dead ends: 4296 [2020-10-15 02:21:32,817 INFO L226 Difference]: Without dead ends: 2871 [2020-10-15 02:21:32,823 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=101, Invalid=279, Unknown=0, NotChecked=0, Total=380 [2020-10-15 02:21:32,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2871 states. [2020-10-15 02:21:32,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2871 to 2693. [2020-10-15 02:21:32,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2693 states. [2020-10-15 02:21:32,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2693 states to 2693 states and 3838 transitions. [2020-10-15 02:21:32,994 INFO L78 Accepts]: Start accepts. Automaton has 2693 states and 3838 transitions. Word has length 92 [2020-10-15 02:21:32,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:21:32,996 INFO L479 AbstractCegarLoop]: Abstraction has 2693 states and 3838 transitions. [2020-10-15 02:21:32,996 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 02:21:32,996 INFO L276 IsEmpty]: Start isEmpty. Operand 2693 states and 3838 transitions. [2020-10-15 02:21:33,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-15 02:21:33,005 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:21:33,005 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:21:33,006 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 02:21:33,006 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:21:33,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:21:33,007 INFO L82 PathProgramCache]: Analyzing trace with hash -1984291057, now seen corresponding path program 1 times [2020-10-15 02:21:33,007 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:21:33,010 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [997613239] [2020-10-15 02:21:33,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:21:33,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:33,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:33,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:33,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:33,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:33,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:34,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:38,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:38,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-15 02:21:38,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 02:21:38,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-15 02:21:38,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:38,083 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:38,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:21:38,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:21:38,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-15 02:21:38,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:38,243 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:21:38,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:21:38,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:38,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:38,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:38,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:21:38,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:38,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:21:38,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:38,253 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:38,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:21:38,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:38,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:21:38,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:38,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:21:38,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:38,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:38,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:38,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-15 02:21:38,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:38,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-15 02:21:38,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:38,284 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:38,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:21:38,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:38,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-15 02:21:38,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:38,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-15 02:21:38,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:38,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:38,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:38,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:21:38,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:38,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:21:38,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:38,312 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:38,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:21:38,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:38,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:21:38,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:38,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-15 02:21:38,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:38,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:38,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:38,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:38,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:38,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:21:38,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:38,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:38,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:21:38,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:38,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:21:38,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:38,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-15 02:21:38,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:38,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:38,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:38,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 02:21:38,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:38,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:21:38,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:38,387 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:38,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:21:38,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:21:38,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:21:38,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:38,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-15 02:21:38,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:38,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:38,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:38,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:38,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:38,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:21:38,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:38,434 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:38,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:21:38,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:21:38,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:21:38,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:38,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-15 02:21:38,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:38,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:38,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:38,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:38,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:38,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:21:38,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:38,441 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:38,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:21:38,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:21:38,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:21:38,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:38,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:21:38,463 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [997613239] [2020-10-15 02:21:38,463 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:21:38,463 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 02:21:38,463 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158453918] [2020-10-15 02:21:38,464 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 02:21:38,464 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:21:38,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 02:21:38,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:21:38,465 INFO L87 Difference]: Start difference. First operand 2693 states and 3838 transitions. Second operand 9 states. [2020-10-15 02:21:38,651 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:21:38,815 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-15 02:21:39,011 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-15 02:21:39,188 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-15 02:21:39,888 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-15 02:21:41,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:21:41,907 INFO L93 Difference]: Finished difference Result 7817 states and 11304 transitions. [2020-10-15 02:21:41,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-15 02:21:41,908 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 93 [2020-10-15 02:21:41,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:21:41,933 INFO L225 Difference]: With dead ends: 7817 [2020-10-15 02:21:41,934 INFO L226 Difference]: Without dead ends: 5231 [2020-10-15 02:21:41,944 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=101, Invalid=279, Unknown=0, NotChecked=0, Total=380 [2020-10-15 02:21:41,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5231 states. [2020-10-15 02:21:42,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5231 to 4939. [2020-10-15 02:21:42,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4939 states. [2020-10-15 02:21:42,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4939 states to 4939 states and 7000 transitions. [2020-10-15 02:21:42,253 INFO L78 Accepts]: Start accepts. Automaton has 4939 states and 7000 transitions. Word has length 93 [2020-10-15 02:21:42,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:21:42,254 INFO L479 AbstractCegarLoop]: Abstraction has 4939 states and 7000 transitions. [2020-10-15 02:21:42,254 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 02:21:42,254 INFO L276 IsEmpty]: Start isEmpty. Operand 4939 states and 7000 transitions. [2020-10-15 02:21:42,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-15 02:21:42,264 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:21:42,264 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:21:42,264 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 02:21:42,265 INFO L427 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:21:42,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:21:42,265 INFO L82 PathProgramCache]: Analyzing trace with hash -719485045, now seen corresponding path program 1 times [2020-10-15 02:21:42,265 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:21:42,265 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [339322524] [2020-10-15 02:21:42,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:21:42,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:42,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:42,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:42,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:42,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:42,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:44,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:46,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:46,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-15 02:21:46,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 02:21:46,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4443 [2020-10-15 02:21:46,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:46,729 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:46,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:21:46,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:21:46,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-15 02:21:46,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:46,890 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:21:46,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:21:46,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:46,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:46,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:46,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:21:46,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:46,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:21:46,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:46,903 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:46,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:21:46,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:46,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:21:46,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:46,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:21:46,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:46,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:46,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:46,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:47,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:47,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-15 02:21:47,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 02:21:47,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-10-15 02:21:47,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:47,031 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:47,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:21:47,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:21:47,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-15 02:21:47,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:47,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-15 02:21:47,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:47,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:47,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:47,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:21:47,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:47,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:21:47,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:47,069 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:47,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:21:47,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:47,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:21:47,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:47,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-15 02:21:47,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:47,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:47,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:47,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:47,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:47,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:21:47,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:47,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:47,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:21:47,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:47,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:21:47,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:47,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-15 02:21:47,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:47,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:47,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:47,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:21:47,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:47,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:21:47,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:47,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:47,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:21:47,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 02:21:47,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:21:47,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:47,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-15 02:21:47,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:47,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:47,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:47,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:47,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:47,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:21:47,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:47,198 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:47,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:21:47,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:21:47,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:21:47,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:47,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-15 02:21:47,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:47,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:47,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:47,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:47,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:47,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:21:47,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:47,204 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:47,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:21:47,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:21:47,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:21:47,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:47,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:21:47,223 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [339322524] [2020-10-15 02:21:47,223 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:21:47,223 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 02:21:47,223 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759047113] [2020-10-15 02:21:47,224 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 02:21:47,224 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:21:47,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 02:21:47,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-15 02:21:47,225 INFO L87 Difference]: Start difference. First operand 4939 states and 7000 transitions. Second operand 10 states. [2020-10-15 02:21:47,405 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:21:47,645 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-15 02:21:47,819 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-15 02:21:48,023 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-15 02:21:48,237 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-15 02:21:48,409 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-15 02:21:48,621 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-15 02:21:48,840 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-15 02:21:53,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:21:53,223 INFO L93 Difference]: Finished difference Result 12135 states and 17056 transitions. [2020-10-15 02:21:53,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-15 02:21:53,223 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 93 [2020-10-15 02:21:53,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:21:53,255 INFO L225 Difference]: With dead ends: 12135 [2020-10-15 02:21:53,255 INFO L226 Difference]: Without dead ends: 7145 [2020-10-15 02:21:53,271 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=189, Invalid=513, Unknown=0, NotChecked=0, Total=702 [2020-10-15 02:21:53,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7145 states. [2020-10-15 02:21:53,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7145 to 6565. [2020-10-15 02:21:53,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6565 states. [2020-10-15 02:21:53,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6565 states to 6565 states and 9332 transitions. [2020-10-15 02:21:53,766 INFO L78 Accepts]: Start accepts. Automaton has 6565 states and 9332 transitions. Word has length 93 [2020-10-15 02:21:53,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:21:53,767 INFO L479 AbstractCegarLoop]: Abstraction has 6565 states and 9332 transitions. [2020-10-15 02:21:53,767 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 02:21:53,767 INFO L276 IsEmpty]: Start isEmpty. Operand 6565 states and 9332 transitions. [2020-10-15 02:21:53,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-15 02:21:53,779 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:21:53,780 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:21:53,780 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-15 02:21:53,780 INFO L427 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:21:53,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:21:53,780 INFO L82 PathProgramCache]: Analyzing trace with hash 1038702838, now seen corresponding path program 1 times [2020-10-15 02:21:53,781 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:21:53,781 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [678526527] [2020-10-15 02:21:53,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:21:53,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:53,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:53,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:54,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:55,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:55,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-15 02:21:55,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 02:21:55,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1747 [2020-10-15 02:21:55,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:55,556 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:55,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:21:55,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-15 02:21:55,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-15 02:21:55,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:55,724 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:21:55,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:21:55,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:55,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:55,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:55,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:21:55,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:55,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:21:55,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:55,737 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:55,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:21:55,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:55,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:21:55,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:55,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:21:55,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:55,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:55,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:55,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-15 02:21:55,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:55,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-15 02:21:55,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:55,764 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:55,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:21:55,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:55,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-15 02:21:55,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:55,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-15 02:21:55,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:55,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:55,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:55,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:21:55,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:55,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:21:55,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:55,775 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:55,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:21:55,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:55,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:21:55,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:55,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-15 02:21:55,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:55,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:55,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:55,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:55,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:55,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:21:55,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:55,808 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:55,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:21:55,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:55,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:21:55,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:55,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-15 02:21:55,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:55,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:55,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:55,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-15 02:21:55,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:55,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:21:55,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:55,854 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:55,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:21:55,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:55,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-15 02:21:55,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:55,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-15 02:21:55,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:55,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:55,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:55,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:55,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:55,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:21:55,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:55,895 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:55,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:21:55,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:21:55,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:21:55,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:55,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-15 02:21:55,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:55,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:55,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:55,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:55,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:55,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:21:55,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:55,926 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:55,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:21:55,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:21:55,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:21:55,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:55,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:21:55,940 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [678526527] [2020-10-15 02:21:55,940 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:21:55,940 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 02:21:55,941 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026150496] [2020-10-15 02:21:55,941 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 02:21:55,941 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:21:55,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 02:21:55,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:21:55,942 INFO L87 Difference]: Start difference. First operand 6565 states and 9332 transitions. Second operand 9 states. [2020-10-15 02:21:56,131 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:21:58,435 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2020-10-15 02:21:58,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:21:58,793 INFO L93 Difference]: Finished difference Result 14647 states and 21199 transitions. [2020-10-15 02:21:58,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-15 02:21:58,794 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 94 [2020-10-15 02:21:58,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:21:58,846 INFO L225 Difference]: With dead ends: 14647 [2020-10-15 02:21:58,846 INFO L226 Difference]: Without dead ends: 9868 [2020-10-15 02:21:58,862 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=110, Invalid=270, Unknown=0, NotChecked=0, Total=380 [2020-10-15 02:21:58,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9868 states. [2020-10-15 02:21:59,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9868 to 9140. [2020-10-15 02:21:59,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9140 states. [2020-10-15 02:21:59,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9140 states to 9140 states and 13069 transitions. [2020-10-15 02:21:59,451 INFO L78 Accepts]: Start accepts. Automaton has 9140 states and 13069 transitions. Word has length 94 [2020-10-15 02:21:59,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:21:59,451 INFO L479 AbstractCegarLoop]: Abstraction has 9140 states and 13069 transitions. [2020-10-15 02:21:59,452 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 02:21:59,452 INFO L276 IsEmpty]: Start isEmpty. Operand 9140 states and 13069 transitions. [2020-10-15 02:21:59,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-10-15 02:21:59,464 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:21:59,464 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:21:59,464 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-15 02:21:59,464 INFO L427 AbstractCegarLoop]: === Iteration 11 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:21:59,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:21:59,465 INFO L82 PathProgramCache]: Analyzing trace with hash 937770226, now seen corresponding path program 1 times [2020-10-15 02:21:59,465 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:21:59,465 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [178949153] [2020-10-15 02:21:59,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:21:59,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:59,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:59,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:59,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:59,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:01,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:01,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:04,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:04,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-15 02:22:04,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 02:22:04,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-15 02:22:04,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:04,484 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:04,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:22:04,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:22:04,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-15 02:22:04,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:04,651 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:22:04,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:22:04,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:04,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:04,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:04,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:22:04,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:04,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:22:04,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:04,662 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:04,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:22:04,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:04,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:22:04,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:04,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:22:04,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:04,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:04,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:04,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:04,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:04,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-15 02:22:04,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 02:22:04,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-15 02:22:04,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:04,794 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:04,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:22:04,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-15 02:22:04,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:22:04,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:04,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-15 02:22:04,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:04,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:04,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:04,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:22:04,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:04,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:22:04,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:04,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:04,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:22:04,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:04,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:22:04,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:04,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-15 02:22:04,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:04,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:04,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:04,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:22:04,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:04,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:22:04,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:04,890 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:04,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:22:04,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:04,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:22:04,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:04,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-15 02:22:04,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:04,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:04,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:04,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 02:22:04,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:04,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:22:04,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:04,932 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:04,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:22:04,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:04,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-15 02:22:04,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:04,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-15 02:22:04,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:04,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:04,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:04,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:22:04,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:04,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:22:04,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:04,974 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:04,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:22:04,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-15 02:22:04,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:22:04,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:04,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-15 02:22:04,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:04,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:04,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:04,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:22:04,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:04,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:22:04,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:04,992 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:04,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:22:04,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:22:04,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:22:04,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:05,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:22:05,008 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [178949153] [2020-10-15 02:22:05,008 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:22:05,008 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 02:22:05,008 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868150291] [2020-10-15 02:22:05,009 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 02:22:05,009 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:22:05,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 02:22:05,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-15 02:22:05,009 INFO L87 Difference]: Start difference. First operand 9140 states and 13069 transitions. Second operand 10 states. [2020-10-15 02:22:05,195 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:22:05,491 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-15 02:22:05,755 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-15 02:22:05,961 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-15 02:22:06,172 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-15 02:22:06,386 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-15 02:22:10,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:22:10,556 INFO L93 Difference]: Finished difference Result 21782 states and 31723 transitions. [2020-10-15 02:22:10,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-15 02:22:10,557 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 96 [2020-10-15 02:22:10,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:22:10,622 INFO L225 Difference]: With dead ends: 21782 [2020-10-15 02:22:10,622 INFO L226 Difference]: Without dead ends: 13726 [2020-10-15 02:22:10,651 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=154, Invalid=446, Unknown=0, NotChecked=0, Total=600 [2020-10-15 02:22:10,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13726 states. [2020-10-15 02:22:11,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13726 to 13153. [2020-10-15 02:22:11,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13153 states. [2020-10-15 02:22:11,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13153 states to 13153 states and 18848 transitions. [2020-10-15 02:22:11,590 INFO L78 Accepts]: Start accepts. Automaton has 13153 states and 18848 transitions. Word has length 96 [2020-10-15 02:22:11,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:22:11,590 INFO L479 AbstractCegarLoop]: Abstraction has 13153 states and 18848 transitions. [2020-10-15 02:22:11,590 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 02:22:11,590 INFO L276 IsEmpty]: Start isEmpty. Operand 13153 states and 18848 transitions. [2020-10-15 02:22:11,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-10-15 02:22:11,603 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:22:11,604 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:22:11,604 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-15 02:22:11,604 INFO L427 AbstractCegarLoop]: === Iteration 12 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:22:11,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:22:11,605 INFO L82 PathProgramCache]: Analyzing trace with hash 1254480195, now seen corresponding path program 1 times [2020-10-15 02:22:11,605 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:22:11,605 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1137203957] [2020-10-15 02:22:11,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:22:11,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:11,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:11,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:11,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:11,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:11,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:12,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:16,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:16,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-15 02:22:16,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 02:22:16,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5099 [2020-10-15 02:22:16,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:16,734 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:16,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:22:16,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:22:16,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-15 02:22:16,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:16,948 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:22:16,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:22:16,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:16,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:16,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:16,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:22:16,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:16,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 02:22:16,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:16,971 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:16,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:22:16,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:16,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:22:16,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:16,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:22:16,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:16,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:17,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:17,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:17,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-15 02:22:17,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 02:22:17,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-10-15 02:22:17,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:17,121 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:17,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:22:17,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:17,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-15 02:22:17,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:17,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-15 02:22:17,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:17,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:17,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:17,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:22:17,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:17,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:22:17,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:17,198 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:17,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:22:17,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:17,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:22:17,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:17,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-15 02:22:17,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:17,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:17,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:17,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:22:17,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:17,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:22:17,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:17,236 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:17,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:22:17,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:17,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:22:17,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:17,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-15 02:22:17,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:17,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:17,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:17,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 02:22:17,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:17,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:22:17,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:17,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:17,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:22:17,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:17,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-15 02:22:17,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:22:17,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-15 02:22:17,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:17,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:17,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:17,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:22:17,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:17,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:22:17,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:17,324 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:17,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:22:17,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-15 02:22:17,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:22:17,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:17,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-15 02:22:17,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:17,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:17,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:17,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:22:17,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:17,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:22:17,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:17,347 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:17,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:22:17,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:22:17,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:22:17,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:17,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:22:17,376 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1137203957] [2020-10-15 02:22:17,376 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:22:17,377 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 02:22:17,377 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415241266] [2020-10-15 02:22:17,377 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 02:22:17,377 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:22:17,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 02:22:17,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:22:17,379 INFO L87 Difference]: Start difference. First operand 13153 states and 18848 transitions. Second operand 9 states. [2020-10-15 02:22:17,557 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:22:17,751 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-15 02:22:18,018 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-15 02:22:18,537 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-15 02:22:21,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:22:21,973 INFO L93 Difference]: Finished difference Result 16019 states and 22884 transitions. [2020-10-15 02:22:21,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-15 02:22:21,973 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 97 [2020-10-15 02:22:21,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:22:22,026 INFO L225 Difference]: With dead ends: 16019 [2020-10-15 02:22:22,026 INFO L226 Difference]: Without dead ends: 12369 [2020-10-15 02:22:22,041 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=121, Invalid=341, Unknown=0, NotChecked=0, Total=462 [2020-10-15 02:22:22,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12369 states. [2020-10-15 02:22:22,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12369 to 11821. [2020-10-15 02:22:22,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11821 states. [2020-10-15 02:22:22,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11821 states to 11821 states and 16836 transitions. [2020-10-15 02:22:22,754 INFO L78 Accepts]: Start accepts. Automaton has 11821 states and 16836 transitions. Word has length 97 [2020-10-15 02:22:22,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:22:22,754 INFO L479 AbstractCegarLoop]: Abstraction has 11821 states and 16836 transitions. [2020-10-15 02:22:22,755 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 02:22:22,755 INFO L276 IsEmpty]: Start isEmpty. Operand 11821 states and 16836 transitions. [2020-10-15 02:22:22,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-10-15 02:22:22,766 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:22:22,766 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:22:22,766 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-15 02:22:22,766 INFO L427 AbstractCegarLoop]: === Iteration 13 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:22:22,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:22:22,767 INFO L82 PathProgramCache]: Analyzing trace with hash 1480904684, now seen corresponding path program 1 times [2020-10-15 02:22:22,767 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:22:22,767 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1133582088] [2020-10-15 02:22:22,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:22:22,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:22,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:22,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:22,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:22,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:24,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:26,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:26,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-15 02:22:26,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 02:22:26,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4127 [2020-10-15 02:22:26,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:26,921 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:26,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:22:26,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-10-15 02:22:26,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-15 02:22:26,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:27,074 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:22:27,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:22:27,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:27,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:27,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:27,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:22:27,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:27,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:22:27,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:27,085 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:27,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:22:27,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:27,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:22:27,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:27,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:22:27,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:27,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:27,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:27,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:27,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-15 02:22:27,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 02:22:27,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-15 02:22:27,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:27,175 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:27,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:22:27,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:27,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:22:27,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:22:27,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-15 02:22:27,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:27,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:27,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:27,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:22:27,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:27,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:22:27,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:27,202 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:27,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:22:27,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:27,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:22:27,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:22:27,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-15 02:22:27,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:27,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:27,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:27,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:22:27,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:27,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:22:27,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:27,253 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:27,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:22:27,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:27,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:22:27,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:22:27,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-15 02:22:27,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:27,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:27,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:27,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:22:27,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:27,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 02:22:27,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:27,303 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:27,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:22:27,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:27,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:22:27,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:27,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-15 02:22:27,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:27,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:27,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:27,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:22:27,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:27,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 02:22:27,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:27,350 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:27,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:22:27,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 02:22:27,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:22:27,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:27,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-15 02:22:27,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:27,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:27,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:27,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:22:27,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:27,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:22:27,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:27,375 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:27,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:22:27,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:22:27,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:22:27,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:27,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:22:27,400 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1133582088] [2020-10-15 02:22:27,400 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:22:27,400 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 02:22:27,401 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888060553] [2020-10-15 02:22:27,402 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 02:22:27,402 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:22:27,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 02:22:27,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-15 02:22:27,403 INFO L87 Difference]: Start difference. First operand 11821 states and 16836 transitions. Second operand 8 states. [2020-10-15 02:22:27,804 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:22:28,214 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-15 02:22:32,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:22:32,241 INFO L93 Difference]: Finished difference Result 31091 states and 45352 transitions. [2020-10-15 02:22:32,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-15 02:22:32,242 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 98 [2020-10-15 02:22:32,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:22:32,317 INFO L225 Difference]: With dead ends: 31091 [2020-10-15 02:22:32,317 INFO L226 Difference]: Without dead ends: 21311 [2020-10-15 02:22:32,351 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-10-15 02:22:32,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21311 states. [2020-10-15 02:22:33,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21311 to 20625. [2020-10-15 02:22:33,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20625 states. [2020-10-15 02:22:33,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20625 states to 20625 states and 29322 transitions. [2020-10-15 02:22:33,526 INFO L78 Accepts]: Start accepts. Automaton has 20625 states and 29322 transitions. Word has length 98 [2020-10-15 02:22:33,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:22:33,526 INFO L479 AbstractCegarLoop]: Abstraction has 20625 states and 29322 transitions. [2020-10-15 02:22:33,526 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 02:22:33,526 INFO L276 IsEmpty]: Start isEmpty. Operand 20625 states and 29322 transitions. [2020-10-15 02:22:33,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-10-15 02:22:33,541 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:22:33,541 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:22:33,541 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-15 02:22:33,541 INFO L427 AbstractCegarLoop]: === Iteration 14 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:22:33,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:22:33,542 INFO L82 PathProgramCache]: Analyzing trace with hash 510724680, now seen corresponding path program 1 times [2020-10-15 02:22:33,542 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:22:33,542 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [653885468] [2020-10-15 02:22:33,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:22:33,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:33,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:33,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:33,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:34,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:34,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:38,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:38,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-15 02:22:38,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 02:22:38,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-15 02:22:38,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:38,573 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:38,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:22:38,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:22:38,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-15 02:22:38,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:38,734 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:22:38,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:22:38,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:38,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:38,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:38,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:22:38,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:38,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:22:38,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:38,744 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:38,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:22:38,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:38,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:22:38,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:38,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:22:38,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:38,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:38,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:38,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-15 02:22:38,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:38,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-15 02:22:38,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:38,781 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:38,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:22:38,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:38,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:22:38,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:38,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-15 02:22:38,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:38,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:38,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:38,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:22:38,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:38,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:22:38,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:38,807 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:38,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:22:38,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:38,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:22:38,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:38,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-15 02:22:38,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:38,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:38,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:38,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:22:38,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:38,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:22:38,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:38,840 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:38,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:22:38,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:38,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:22:38,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:38,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-15 02:22:38,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:38,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:38,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:38,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-15 02:22:38,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:38,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:22:38,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:38,882 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:38,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:22:38,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:38,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-15 02:22:38,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:38,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-15 02:22:38,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:38,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:38,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:38,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 02:22:38,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:38,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:22:38,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:38,924 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:38,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:22:38,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 02:22:38,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:22:38,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:38,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-15 02:22:38,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:38,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:38,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:38,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:22:38,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:38,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:22:38,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:38,943 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:38,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:22:38,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:22:38,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:22:38,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:38,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:22:38,960 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [653885468] [2020-10-15 02:22:38,960 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:22:38,960 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 02:22:38,960 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797696128] [2020-10-15 02:22:38,961 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 02:22:38,961 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:22:38,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 02:22:38,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:22:38,961 INFO L87 Difference]: Start difference. First operand 20625 states and 29322 transitions. Second operand 9 states. [2020-10-15 02:22:39,151 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:22:39,320 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-15 02:22:39,514 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-15 02:22:39,681 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-15 02:22:40,280 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-15 02:22:43,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:22:43,346 INFO L93 Difference]: Finished difference Result 37364 states and 53049 transitions. [2020-10-15 02:22:43,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-15 02:22:43,348 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 99 [2020-10-15 02:22:43,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:22:43,412 INFO L225 Difference]: With dead ends: 37364 [2020-10-15 02:22:43,413 INFO L226 Difference]: Without dead ends: 21443 [2020-10-15 02:22:43,439 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=101, Invalid=279, Unknown=0, NotChecked=0, Total=380 [2020-10-15 02:22:43,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21443 states. [2020-10-15 02:22:44,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21443 to 20535. [2020-10-15 02:22:44,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20535 states. [2020-10-15 02:22:44,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20535 states to 20535 states and 29137 transitions. [2020-10-15 02:22:44,744 INFO L78 Accepts]: Start accepts. Automaton has 20535 states and 29137 transitions. Word has length 99 [2020-10-15 02:22:44,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:22:44,745 INFO L479 AbstractCegarLoop]: Abstraction has 20535 states and 29137 transitions. [2020-10-15 02:22:44,745 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 02:22:44,745 INFO L276 IsEmpty]: Start isEmpty. Operand 20535 states and 29137 transitions. [2020-10-15 02:22:44,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-10-15 02:22:44,759 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:22:44,759 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:22:44,759 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-15 02:22:44,760 INFO L427 AbstractCegarLoop]: === Iteration 15 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:22:44,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:22:44,760 INFO L82 PathProgramCache]: Analyzing trace with hash -2049697794, now seen corresponding path program 1 times [2020-10-15 02:22:44,760 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:22:44,760 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [613218568] [2020-10-15 02:22:44,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:22:44,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:44,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:44,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:44,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:44,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:49,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:49,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-15 02:22:49,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 02:22:49,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-15 02:22:49,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:49,789 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:49,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-15 02:22:49,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 02:22:49,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-15 02:22:49,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:49,971 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:22:49,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:22:49,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:49,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:49,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:49,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:22:49,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:49,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:22:49,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:49,988 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:49,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:22:49,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:49,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 02:22:49,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:49,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:22:49,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:50,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:50,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:50,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-15 02:22:50,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:50,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-15 02:22:50,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:50,031 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:50,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:22:50,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:50,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-15 02:22:50,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:50,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-15 02:22:50,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:50,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:50,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:50,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:22:50,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:50,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:22:50,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:50,061 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:50,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:22:50,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:50,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:22:50,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:50,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-15 02:22:50,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:50,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:50,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:50,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:22:50,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:50,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:22:50,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:50,096 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:50,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:22:50,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:50,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:22:50,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:50,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-15 02:22:50,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:50,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:50,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:50,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 02:22:50,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:50,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 02:22:50,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:50,143 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:50,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:22:50,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:22:50,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-15 02:22:50,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:50,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-15 02:22:50,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:50,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:50,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:50,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:22:50,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:50,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:22:50,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:50,243 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:50,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:22:50,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 02:22:50,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:22:50,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:50,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-15 02:22:50,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:50,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:50,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:50,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:22:50,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:50,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:22:50,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:50,247 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:50,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:22:50,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:22:50,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:22:50,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:50,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:22:50,260 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [613218568] [2020-10-15 02:22:50,260 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:22:50,261 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-15 02:22:50,261 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191128504] [2020-10-15 02:22:50,261 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-15 02:22:50,261 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:22:50,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-15 02:22:50,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2020-10-15 02:22:50,262 INFO L87 Difference]: Start difference. First operand 20535 states and 29137 transitions. Second operand 14 states. [2020-10-15 02:22:50,479 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-15 02:22:50,649 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:22:51,026 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-15 02:22:51,419 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-15 02:22:54,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:22:54,736 INFO L93 Difference]: Finished difference Result 34450 states and 48474 transitions. [2020-10-15 02:22:54,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-15 02:22:54,737 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 99 [2020-10-15 02:22:54,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:22:54,819 INFO L225 Difference]: With dead ends: 34450 [2020-10-15 02:22:54,819 INFO L226 Difference]: Without dead ends: 26782 [2020-10-15 02:22:54,842 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=247, Invalid=683, Unknown=0, NotChecked=0, Total=930 [2020-10-15 02:22:54,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26782 states. [2020-10-15 02:22:55,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26782 to 21928. [2020-10-15 02:22:55,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21928 states. [2020-10-15 02:22:56,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21928 states to 21928 states and 30668 transitions. [2020-10-15 02:22:56,040 INFO L78 Accepts]: Start accepts. Automaton has 21928 states and 30668 transitions. Word has length 99 [2020-10-15 02:22:56,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:22:56,041 INFO L479 AbstractCegarLoop]: Abstraction has 21928 states and 30668 transitions. [2020-10-15 02:22:56,041 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-15 02:22:56,041 INFO L276 IsEmpty]: Start isEmpty. Operand 21928 states and 30668 transitions. [2020-10-15 02:22:56,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-10-15 02:22:56,054 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:22:56,055 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:22:56,055 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-15 02:22:56,055 INFO L427 AbstractCegarLoop]: === Iteration 16 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:22:56,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:22:56,056 INFO L82 PathProgramCache]: Analyzing trace with hash 1735796412, now seen corresponding path program 1 times [2020-10-15 02:22:56,056 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:22:56,056 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1783169821] [2020-10-15 02:22:56,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:22:56,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:56,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:56,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:56,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:57,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:57,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-15 02:22:57,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 02:22:57,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1854 [2020-10-15 02:22:57,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:57,933 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:57,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:22:57,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 48 [2020-10-15 02:22:57,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-15 02:22:57,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:58,106 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:22:58,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:22:58,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:58,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:58,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:58,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:22:58,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:58,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:22:58,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:58,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:58,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:22:58,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:58,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:22:58,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:58,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:22:58,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:58,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:58,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:58,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-15 02:22:58,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:58,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-15 02:22:58,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:58,163 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:58,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:22:58,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:58,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-15 02:22:58,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:58,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-15 02:22:58,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:58,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:58,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:58,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:22:58,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:58,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:22:58,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:58,194 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:58,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:22:58,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:58,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:22:58,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:58,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-15 02:22:58,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:58,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:58,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:58,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:22:58,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:58,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:22:58,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:58,233 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:58,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:22:58,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:22:58,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:22:58,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:58,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-15 02:22:58,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:58,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:58,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:58,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 02:22:58,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:58,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 02:22:58,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:58,304 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:58,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:22:58,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:22:58,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-15 02:22:58,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:58,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-15 02:22:58,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:58,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:58,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:58,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:22:58,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:58,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 02:22:58,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:58,369 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:58,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:22:58,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:22:58,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-15 02:22:58,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:58,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-15 02:22:58,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:58,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:58,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:58,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:22:58,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:58,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:22:58,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:58,392 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:58,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:22:58,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-15 02:22:58,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:22:58,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:58,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:22:58,446 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1783169821] [2020-10-15 02:22:58,446 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:22:58,446 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-15 02:22:58,447 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749130677] [2020-10-15 02:22:58,447 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-15 02:22:58,447 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:22:58,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-15 02:22:58,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-15 02:22:58,448 INFO L87 Difference]: Start difference. First operand 21928 states and 30668 transitions. Second operand 13 states. [2020-10-15 02:22:58,657 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-15 02:22:59,065 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-15 02:22:59,229 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-15 02:23:01,207 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-15 02:23:01,386 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-15 02:23:01,980 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:23:02,269 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-15 02:23:09,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:23:09,793 INFO L93 Difference]: Finished difference Result 119647 states and 171096 transitions. [2020-10-15 02:23:09,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2020-10-15 02:23:09,794 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 99 [2020-10-15 02:23:09,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:23:10,143 INFO L225 Difference]: With dead ends: 119647 [2020-10-15 02:23:10,144 INFO L226 Difference]: Without dead ends: 102582 [2020-10-15 02:23:10,204 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 884 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=652, Invalid=2318, Unknown=0, NotChecked=0, Total=2970 [2020-10-15 02:23:10,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102582 states. [2020-10-15 02:23:16,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102582 to 97003. [2020-10-15 02:23:16,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97003 states. [2020-10-15 02:23:16,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97003 states to 97003 states and 138353 transitions. [2020-10-15 02:23:16,887 INFO L78 Accepts]: Start accepts. Automaton has 97003 states and 138353 transitions. Word has length 99 [2020-10-15 02:23:16,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:23:16,888 INFO L479 AbstractCegarLoop]: Abstraction has 97003 states and 138353 transitions. [2020-10-15 02:23:16,888 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-15 02:23:16,888 INFO L276 IsEmpty]: Start isEmpty. Operand 97003 states and 138353 transitions. [2020-10-15 02:23:16,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-15 02:23:16,911 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:23:16,911 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:23:16,911 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-15 02:23:16,911 INFO L427 AbstractCegarLoop]: === Iteration 17 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:23:16,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:23:16,912 INFO L82 PathProgramCache]: Analyzing trace with hash 2103983854, now seen corresponding path program 1 times [2020-10-15 02:23:16,912 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:23:16,912 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2066380129] [2020-10-15 02:23:16,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:23:16,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:16,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:16,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:17,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:17,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:21,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:21,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-15 02:23:21,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 02:23:21,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-15 02:23:21,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:21,944 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:21,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:23:21,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-10-15 02:23:21,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-15 02:23:21,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:22,103 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:23:22,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:23:22,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:22,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:22,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:22,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:23:22,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:22,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:23:22,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:22,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:22,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:23:22,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:23:22,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:23:22,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:22,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:23:22,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:22,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:22,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:22,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-15 02:23:22,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:22,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-15 02:23:22,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:22,145 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:22,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:23:22,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:23:22,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-15 02:23:22,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:22,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-15 02:23:22,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:22,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:22,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:22,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:23:22,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:22,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:23:22,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:22,158 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:22,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:23:22,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:23:22,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:23:22,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:22,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-15 02:23:22,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:22,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:22,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:22,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:23:22,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:22,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:23:22,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:22,190 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:22,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:23:22,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:23:22,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:23:22,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:22,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-15 02:23:22,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:22,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:22,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:22,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-15 02:23:22,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:22,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 02:23:22,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:22,234 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:22,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:23:22,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:23:22,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-15 02:23:22,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:22,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-15 02:23:22,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:22,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:22,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:22,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:23:22,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:22,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:23:22,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:22,316 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:22,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:23:22,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 02:23:22,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:23:22,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:22,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-15 02:23:22,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:22,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:22,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:22,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:23:22,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:22,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:23:22,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:22,321 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:22,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:23:22,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:23:22,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:23:22,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:22,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:23:22,335 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2066380129] [2020-10-15 02:23:22,335 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:23:22,335 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 02:23:22,336 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557315249] [2020-10-15 02:23:22,336 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 02:23:22,336 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:23:22,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 02:23:22,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-10-15 02:23:22,337 INFO L87 Difference]: Start difference. First operand 97003 states and 138353 transitions. Second operand 10 states. [2020-10-15 02:23:22,517 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:23:28,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:23:28,457 INFO L93 Difference]: Finished difference Result 181245 states and 256764 transitions. [2020-10-15 02:23:28,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-15 02:23:28,458 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 100 [2020-10-15 02:23:28,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:23:29,256 INFO L225 Difference]: With dead ends: 181245 [2020-10-15 02:23:29,257 INFO L226 Difference]: Without dead ends: 107054 [2020-10-15 02:23:29,423 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=97, Invalid=283, Unknown=0, NotChecked=0, Total=380 [2020-10-15 02:23:29,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107054 states. [2020-10-15 02:23:34,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107054 to 90368. [2020-10-15 02:23:34,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90368 states. [2020-10-15 02:23:34,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90368 states to 90368 states and 128003 transitions. [2020-10-15 02:23:34,561 INFO L78 Accepts]: Start accepts. Automaton has 90368 states and 128003 transitions. Word has length 100 [2020-10-15 02:23:34,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:23:34,562 INFO L479 AbstractCegarLoop]: Abstraction has 90368 states and 128003 transitions. [2020-10-15 02:23:34,562 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 02:23:34,562 INFO L276 IsEmpty]: Start isEmpty. Operand 90368 states and 128003 transitions. [2020-10-15 02:23:34,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-15 02:23:34,590 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:23:34,590 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:23:34,591 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-15 02:23:34,591 INFO L427 AbstractCegarLoop]: === Iteration 18 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:23:34,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:23:34,591 INFO L82 PathProgramCache]: Analyzing trace with hash -1047842305, now seen corresponding path program 1 times [2020-10-15 02:23:34,591 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:23:34,591 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1465457979] [2020-10-15 02:23:34,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:23:34,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:34,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:34,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:34,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:36,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:37,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:37,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-15 02:23:37,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 02:23:37,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2419 [2020-10-15 02:23:37,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:37,038 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:37,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:23:37,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 48 [2020-10-15 02:23:37,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-15 02:23:37,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:37,208 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:23:37,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:23:37,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:37,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:37,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:37,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:23:37,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:37,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:23:37,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:37,219 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:37,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:23:37,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:23:37,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:23:37,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:37,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:23:37,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:37,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:37,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:37,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-15 02:23:37,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:37,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-15 02:23:37,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:37,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:37,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:23:37,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:23:37,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-15 02:23:37,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:37,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-15 02:23:37,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:37,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:37,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:37,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:23:37,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:37,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:23:37,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:37,270 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:37,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:23:37,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:23:37,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:23:37,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:37,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-15 02:23:37,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:37,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:37,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:37,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:23:37,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:37,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:23:37,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:37,308 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:37,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:23:37,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:23:37,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:23:37,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:37,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-15 02:23:37,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:37,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:37,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:37,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 02:23:37,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:37,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:23:37,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:37,364 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:37,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:23:37,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:23:37,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-15 02:23:37,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:37,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-15 02:23:37,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:37,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:37,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:37,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:23:37,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:37,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:23:37,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:37,409 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:37,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:23:37,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:23:37,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:23:37,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:37,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-15 02:23:37,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:37,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:37,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:37,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:23:37,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:37,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:23:37,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:37,415 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:37,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:23:37,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-15 02:23:37,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:23:37,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:37,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:23:37,442 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1465457979] [2020-10-15 02:23:37,442 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:23:37,442 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 02:23:37,454 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954290627] [2020-10-15 02:23:37,454 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 02:23:37,455 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:23:37,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 02:23:37,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-15 02:23:37,455 INFO L87 Difference]: Start difference. First operand 90368 states and 128003 transitions. Second operand 10 states. [2020-10-15 02:23:37,631 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-15 02:23:38,019 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-15 02:23:40,186 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-15 02:23:40,363 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-15 02:23:50,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:23:50,621 INFO L93 Difference]: Finished difference Result 273667 states and 385375 transitions. [2020-10-15 02:23:50,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 02:23:50,622 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 100 [2020-10-15 02:23:50,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:23:51,178 INFO L225 Difference]: With dead ends: 273667 [2020-10-15 02:23:51,178 INFO L226 Difference]: Without dead ends: 189512 [2020-10-15 02:23:51,308 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=254, Invalid=802, Unknown=0, NotChecked=0, Total=1056 [2020-10-15 02:23:51,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189512 states. [2020-10-15 02:24:03,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189512 to 178976. [2020-10-15 02:24:03,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178976 states. [2020-10-15 02:24:03,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178976 states to 178976 states and 250656 transitions. [2020-10-15 02:24:03,730 INFO L78 Accepts]: Start accepts. Automaton has 178976 states and 250656 transitions. Word has length 100 [2020-10-15 02:24:03,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:24:03,730 INFO L479 AbstractCegarLoop]: Abstraction has 178976 states and 250656 transitions. [2020-10-15 02:24:03,730 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 02:24:03,730 INFO L276 IsEmpty]: Start isEmpty. Operand 178976 states and 250656 transitions. [2020-10-15 02:24:03,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-15 02:24:03,747 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:24:03,747 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:24:03,748 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-15 02:24:03,748 INFO L427 AbstractCegarLoop]: === Iteration 19 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:24:03,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:24:03,748 INFO L82 PathProgramCache]: Analyzing trace with hash 681151020, now seen corresponding path program 1 times [2020-10-15 02:24:03,748 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:24:03,748 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1963402674] [2020-10-15 02:24:03,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:24:03,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:24:03,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:03,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:03,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:03,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:05,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:08,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:08,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:08,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:24:08,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-15 02:24:08,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-15 02:24:08,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-15 02:24:08,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:24:08,770 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:24:08,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-15 02:24:08,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 02:24:08,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-15 02:24:08,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:24:08,946 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:24:08,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:24:08,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:24:08,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:08,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:24:08,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:24:08,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:24:08,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:24:08,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:24:08,962 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:24:08,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:24:08,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:24:08,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 02:24:08,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:24:08,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:24:08,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:24:08,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:09,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:24:09,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-15 02:24:09,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:24:09,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-15 02:24:09,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:24:09,001 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:24:09,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:24:09,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:24:09,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-15 02:24:09,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:24:09,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-15 02:24:09,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:24:09,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:09,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:24:09,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:24:09,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:24:09,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:24:09,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:24:09,031 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:24:09,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:24:09,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:24:09,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:24:09,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:24:09,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-15 02:24:09,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:24:09,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:09,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:24:09,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:24:09,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:24:09,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:24:09,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:24:09,070 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:24:09,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:24:09,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:24:09,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:24:09,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:24:09,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-15 02:24:09,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:24:09,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:09,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:24:09,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:24:09,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:24:09,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:24:09,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:24:09,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:24:09,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:24:09,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:24:09,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:24:09,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:24:09,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-15 02:24:09,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:24:09,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:09,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:24:09,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-15 02:24:09,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:24:09,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 02:24:09,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:24:09,174 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:24:09,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:24:09,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:24:09,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-15 02:24:09,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:24:09,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-15 02:24:09,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:24:09,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:09,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:24:09,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:24:09,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:24:09,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:24:09,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:24:09,237 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:24:09,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:24:09,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:24:09,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:24:09,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:24:09,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:24:09,252 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1963402674] [2020-10-15 02:24:09,252 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:24:09,252 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-15 02:24:09,252 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989914072] [2020-10-15 02:24:09,253 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-15 02:24:09,253 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:24:09,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-15 02:24:09,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-10-15 02:24:09,253 INFO L87 Difference]: Start difference. First operand 178976 states and 250656 transitions. Second operand 14 states. [2020-10-15 02:24:09,635 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 151 [2020-10-15 02:24:09,819 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 149